HELLO MAM,

You can calculate your percentile using this formula:

Percentile mark = (Number of candidates who have scored less marks than you/ N) x 100

where N =total no. of candidates appearing for exam.

HOPE THIS HELP 

THANK YOU

ALL THE BEST

respected mam,

kindly visit the below link to know how the msarks are totalled.

https://bschool.careers360.com/articles/mat-result

hope i was able to help you.